import router from './router'
import store from './store'
import { Message } from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken, getRole } from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

const whiteList = ['/login', '/display', '/farm'] // no redirect whitelist

router.beforeEach(async(to, from, next) => {
  // start progress bar
  NProgress.start()

  // set page title
  document.title = getPageTitle(to.meta.title)

  // determine whether the user has logged in
  const hasToken = getToken()
  const role = getRole()

  if (role === '2') {
    if (whiteList.indexOf(to.path) !== -1) {
      next()
      NProgress.done()
    } else {
      next({ path: '/login' })
    }
  } else {
    if (hasToken) {
      if (to.path === '/login') {
        // if is logged in, redirect to the home page
        next({ path: '/' })
        NProgress.done()
      } else {
        const hasGetUserInfo = store.getters.name
        if (hasGetUserInfo) {
          next()
        } else {
          try {
            // const hasRoles = store.getters.roles && store.getters.roles.length > 0
            await store.dispatch('user/getInfo')

            // generate accessible routes map based on roles
            const accessRoutes = await store.dispatch('permission/generateRoutes', [role])

            // dynamically add accessible routes
            router.addRoutes(accessRoutes)

            // hack method to ensure that addRoutes is complete
            // set the replace: true, so the navigation will not leave a history record
            next({ ...to, replace: true })
            // next()
          } catch (error) {
            // remove token and go to login pageto re-login
            await store.dispatch('user/resetToken')
            console.log(error)
            Message.error(error || 'Has Error')
            // next(`/login?redirect=${to.path}`)
            next(`/login`)
            NProgress.done()
          }
        }
      }
    } else {
      /* has no token*/

      if (whiteList.indexOf(to.path) !== -1) {
        // in the free login whitelist, go directly
        next()
      } else {
        // other pages that do not have permission to access are redirected to the login page.
        // next(`/login?redirect=${to.path}`)
        next(`/login`)
        NProgress.done()
      }
    }
  }
})

router.afterEach(() => {
  // finish progress bar
  NProgress.done()
})
